Telegraphic transmitter.



PATENTED NOV. 3, 1903.

A. E. MORELOOK. TELEGRAPHIU TRANSMITTER.

APBLIUATION FILED MAY 11, 1903.

3 SHEETS-SHEET 1.

(No Model.) I

In [0r Witnesses n1: NoRms FErERS Q1. wm'ouwa. WASHINGYON. u. c

PATENTED NOV. 3, 1903.

A. E. MORELOGK. I TELEGRAPHIG TRANSMITTER.

APPLICATION FILED MAY 11, 1903.

3 SHEETS-SHEET 2.

N0 MODEL.

Inventor W1! nesses fm: dams PIZI'ERS co. PHOTO-LITHO.,WASNING1ON, o. c.

No. 743,012. PATENTBD NOV. 3, 1903.

' A. B. MORELOGK.

TELEGRAPHIG TRANSMITTER.

AIfPI-IOATION FILED MAY 11. 1903. K0 MODEL. 3 SHEETS-433E 3.

i atented. November 3, 1905;.

UNlTED STATES PATENT O FICE.

ALBERT E. MoRELooK, on TOPEKA, KANSAS, ASSIGNOR on ONE-HALF To SAMUEL W. LAKIN, or TOPEKA, KANSAS.

TELEGRAPHIC TRANSMITTER.

SPEGIFICATION forming part of Letters Patent No. 743,012, dated November e, 1903}:

Application filed May 11, 1903. Serial No. 156,517. (No model.)

mitters, of which the following is a specifi-' cation.

The invention relates to automatic or semiautomatic telegraphic transmitters-that is to say, machines adapted to transmit telegraphic signals by the ordinary make-andbreak or Morse method, a single stroke of a key sufficing to put in operation mechanism which automatically transmits the dots and dashes which denote the letter or other character or combination of characters on that key without further efiort on the part of the operator. Another apparatus of the same class constitutes the subject-matter of an application, Serial No. 140,7 53, filed by me J anuary 27, 1903, for telegraphic transmitting attachments for type-writers, in which application are shown, but not claimed, some of the devices herein shown and claimed relating especially to the releasing and stopping mechanism and to which application reference is hereby made.

Although the present inventionv may be constructed wholly separately from a typewriter, it is preferable to'construct it in connection therewith or attach it thereto, as it enables the operator to retain a duplicate of and verify the message transmitted.

The objects are to provide an apparatus of this nature which may be readily attached to any 0rd inarytype-writer without extensive alterations of the type writer and without interfering to any appreciable degree with the free and unfettered use thereof and which is simple and economic in construction and operation and has less number and less complicated parts than machines of a similar nature heretofore devised. I

The invention consists of the novel combi: nation, arrangement, and disposition of the parts, as herein described and claimed and as shown in the drawings accompanying and forming part of this specification.

Figure 1 is a side elevation of the machine attached to a type-writer of the class known as the Remington, the near side of the frame being removed and parts of theinternal mechanism being shown in section through the line 2' 2, Fig. 7. Fig. 2 is aside view of portions'of the internal mechanism through the line 2 3, Fig. 7, the symbol-disk beingin its normal position. Fig. 3 represents the other side of the symbol-disk or make-andbreak wheel and the adjoining parts. In this view the parts are shown .in their positions when the make-and break wheel is revolving. Figs. 4., 5, and 6 are details of the releasing and stopping device, Fig. 4 being a front view and Figs. 5 and 6 being sectional views through the line 5 6, Figs. 2 and l. In Fig. 5 the parts are shown in their positions when the symbol-disk is at rest, as in Fig. 2. In

Fig. 6 the same parts are shown in their positions at the moment of the stroke of the key, except that the escapement-lever, which is then withdrawn from the dog, is not shown. Fig. 7 is a front elevation of the transmitter, parts being shown in section and the lower parts of the type-writer being also shown in section. Fig. 8 is a View through the line 8 8, Fig. 2. line 9' 9, Fig. 7. Fig. 10 is a broken rear elevation of the transmitter, some of the internal parts being shown in dotted outline in order to expose their relative positions. Fig. 11 is a side View of the symbol-disk corresponding to the letter t'nainely, two dots. Fig. 12 is a view mostly in side elevatiombut partly in section, of a suitable governing and regulating device which is to be used in connection with the transmitter to regulate the speed of the driving mechanism; and Fig. 13 is an end view of the transmitter-frame, showing the dial and indicator whereby the transmitter may be readily adjusted as to speed.

Like reference letters and numerals indicate like parts throughout the several views.

A is the type-writer.

F is the type-bar.

f is the type.

H is the rod connecting the type-bar to the key-lever K, and h is the nut securing it thereto.

LB is the local battery, located, if desired, under the table or desk or within the frame or any other suitable place, and consisting,

Fig. 9 is a section through the screw 10, wire g, binding-post 7.

preferably, of three cells, all three of which furnish current for the motor, while the looking or spacing circuit, hereinafter described, is connected up with only one of the cells.

1 1 are a series of make-and-break wheels or symbol-disks, one for each telegraphic signal or group or combination of signals, constructed very much like corresponding wheels of similardevices, each consistin g of the main body portion of insulating material, with blocks of insulation 22 in the periphery so disposed as to alternately open and close the main-line circuit, the periphery being in contact with a brush 5, which forms one terminal, the disk forming the other terminal, of the main line. In the drawings, except in Fig. 11, the disk is shown as representing the telegraphic signal for the com1nanamely, The wheel has a hub Z to hold it firmly in a permanent plane. The wheels or disks are loosely mounted on the drivingshaft 3, which is suitably mounted in the bearings 55 of the inelosing frame 4, which may be located at the rear of the type-writer. The shaft is driven by the motor M through the gears 51 53 and motor-shaft 54. The motor may be provided with suitable governing, controlling, or regulating devices for governing, controlling, or regulating the speed thereof and may be connected with the battery LB by wires 6 f, from which it may be disconnected by switch 46. A brush 5 is provided for each of the symbol-disks, bearing lightly against the periphery thereof, being pivoted to the insulated foot 17 of the bracket 14, which extends along the rear of the frame 4, being attached thereto by the screws 15. An arm 11, extending from the foot 17, and an adjusting-screw 12 are provided for each brush, The brushes are connected in series by wires b Z) I) and to the binding-post 7 by wire g. The brush 29 on the driving-shaft is provided with binding-post 31. The mainline wires are connected with binding-posts '7 31, so that the circuit of the main line through the machine may be traced, commencing with binding-post 31, thence brush 29, drivingshaft 3, make-and-break wheel 1, brush 5, The circuit is normally open because the brush normally rests against the block of insulation on the disk, but will be closed as the disk revolves, bringing the conducting portion into contact with the brush.

T T T are a series of releasing and stoping leversone for each disk-pivoted on the shaft 13, which is mounted between brackets 24 24, securedto the frame 4 by screws 33 33 through slots 34 34, whereby the brackets may be vertically adjusted. A foot 25 extends under the series of levers to form a bearing for the springs 30, one of which is provided for each lever, to hold it in normal position. Each lever carries an arm .18, ad justablysecured thereto by the slot 71 and screws 70, to engage the dog G, which consists of the spring 19, countersunk into the side of the disk, as shown at 23, and which tends naturally to the position shown in Fig. 6 and which carries an element comprising a finger '21,extending inwardly into and through a hole 20 in the disk, and an arm 16, extending from the other side and adapted to engage the arm 18. The finger 21 is of such length that when the arm 18 engages the dog the finger is within the disk; but when disengaged from the arm 18 the finger protrudes from the side thereof, and the arm 16 is bent outwardly or beveled off, so as to engage the arm 18 as it is moved toward said arm 18. The arms 26 26 26 are permanently attached to the driving-shaft 3 by the set-screw :27 in the hub 28, from which said arms radiate and are located on that side of the disk from which the finger 21 projects. They may brush lightly against the wheel, but do not move it. They are long enough and close enough to engage the finger 21 of the dog G when the end projects from the side of the disk and into the plane of the arms, as in Figs. 3 and 6, but do not engage the finger21 when the dog is drawn back into the wheel, as in Figs. 2 and 5. The levers extend out through the slots 63 63 in the front of the inclosing frame and are operatively connected to the respective key-levers of the typewriter by the rod 36, spring 38, rod 37, secured by nut 39, it being understood that each releasin g and sto in lever T is se aratel T connected to the key-lever of the type-writer corre sponding to that releasing and stopping lever.

1n the drawings the telegraphic attachment is shown as applied to a standard Remington typewriter, in which the attachment may be used by attaching it, as indicated, to the rear thereof. l/Vith other styles of type-writers the connecting mechanism may be varied to suit each contingency, and, indeed, the connections may be varied in the same typewriter without departing from, the spirit of the invention.

The disks 1 1 are of uniform size, and being mounted and actuated by the shaft 3 are driven at a uniform speed. Thus it is that as similar devices are constructed each signal requires a revolution of the disk to transmit, or, in other words, it requires as much time to transmit the short signalas, for instance, the signal for the letter e, which is indicated by a single dotas it does to transmit the longer signals. I provide an arrangement whereby only that amount of time is allotted to each signal as is required for the transmission thereofthat is to say, I provide a means for looking all the other disks while any one of them is transmitting a signal, but unlocking them as soon as that signal is transmitted, even though the disk has not yet finished making its complete revolution.

A contact-arm 6 is provided for each brush 5, being properly insulated therefrom and supported by the insulating-block 9, to which the arm is secured by the screw 8. Contactpieces 46 47, preferably of platinum, on the arm 6 and brush 5, respectively, form opposite terminals of the local circuit, which may be traced through contact-point 46, arm 6, screw 8, wire c,one cell of local battery LB, wire cl, screw 10, brush 5, contact-point 47. The electromagnet 44 44 may be included either in wire d, as in Fig. 1, or in wire 0, as in Fig. 7 5 but in any event it is includedin the local circuit just described. That portion of the periphery of the disk which is not taken up with the necessary signal-symbols is recessed at 57, so that thebrush 5, whose tip 58 is adapted to bear against the periphery,

is in the normal position shown in Fig; 2, the pieces 46 47 being out of contact, thus opening the local circuit; but as the disk revolves, bringing the signal-symbol portion of the disk into contact with the brush, the brush is raised up, as indicated in Fig. 3, bringing the two pieces 46 47 into contact, thus closing the local circuit. As soon as the signal is transmitted the brush falls down. again into the recessed portion 57, thus opening the local circuit. The arms 6 6 6 are connected in series by the wires a a, so that the circuit will beclosed by the operation of any disk. Each lever T has an offset or notch 73, under which is a bar 41, carried by the levers 42 42, which are pivoted at 43 43 and which form the armatures for the electromagnets 44 44, suitably attached to the inclosing frame; These parts are so disposed that when the electromagnets are not energized the levers 42 42, drawn by the retractile spring 74, carry the bar under the notches 73 7 3; thus permitting the downward movement of the levers TT; but when the magnets are energized the armatures being drawn thereto to carry the bar 41 outfrom underthe notches and immediately under the levers T '1, so as to prevent their downward movement, thus lockin g them. A bar extends along the front side of the inclosing frame and may be used to adjust the downward stroke of the levers T T through the slots 62 62 and screws 61 61.

To lock the telegraphic attachment when.

it is desired to operate the type-writer, either the switch 32 may be shifted, cutting the machine out of the main line, or the switch 80 may be used to close the local circuit, in which latter event the operation of the type-writer key-levers will simply expand the spring 38 without operating the levers T T.

In nearly all type-writers there are more or less loose joints between the key-levers and the type-bars, so that the key-lever moves some slight distance before all the slack is taken up and before the type-bar is caused to move. Thus it is that a bar 47, pivoted at 48 and provided with a handle 49, may be used under the type-writerkey'levers, as indicated also by the dotted outline 50, to lock the type-writer against the operation of the type-bars while permitting the slight movement which does not operate the type-bars, but which is .sufficient to'operate the telegraphic attachment. If necessary, the nuth may be loosened, as shown, to permit more (C 7,

To operate the machine, when it is desired to operate both the type-writer and the transmitter at the same time the main line is connected up, the switch 32 opened, the switch 46 closed, the switch S0 opened, the bar 47 turned down, as shown in Fig. 1. The shaft 3 is therebyput into constant rotation, carrying the arms 26 26. Upon the stroke of the typewriter key the type is forced against the platen in the usual manner of type-writers, and the dog G is released from the arm 18 by the levers K, rods 37 and 36, and spring 38, and lever T, thus permitting the finger 21 to protrude from the side of the disk 1 into engagement with the arms 26 26, whereby the disk is caused to revolve with the shaft 3. revolves the local circuit is closed at the points 46 47, thus locking the levers T T against operation until the symbol of the revolving disk is transmitted, when the said 10- cal circuit is opened, permitting the sending of the next signal. Of course with the opening of the circuit and the releasing of the armatures 42 42 there is a click by which the operator will soon instinctively learn to govern the speed with which the next signal shall follow any given signal. The stroke of the typewriter key being sharp and momentary, the lever T quickly returns to its normal position, thus permitting the forward movement of the bar 41 on the armatures 42 42; but even during this momentary interval the dog G on the disk has escaped from its normal position. As the disk revolves, the arm 18 being returned to its normal position, the dog is again brought into engagement with the arm 18, thus drawing the finger 21 out of engagement with the arms 26 26 and stopping the make-and-break wheel or symbol-disk in its normal position. The momentum of the disk insures the bri 11ging of the dog G into complete engagement with the arm 18. If it is desired to operate only the transmitter without operating the type-writertype, then, the machine being connected and adjusted as described in the preceding paragraph, the bar 47 is shifted to its upright position, as indicated by the dotted outline 50 in Fig. 1, whereupon, as heretofore described, the stroke of the key operates only the transmitter without operating the type-writer, connecting-rods H, or the typebars F, and when it is desired to operate the type-writer without operating the transmitter, the machine being connected and adjusted as described in the preceding paragraph, the apparatus may be adjusted in a number of ways-namely, by closing the switch 32, thereby cutting the apparatus entirely off from the main line, by closing the switch 80, thereby looking all the levers T T, or by opening the switch 46, thereby stopping the driving-shaft. If the type-writer is to be IIC operated without the transmitter only mothe result by simply closing the switch but if it is desired to place the transmitter out of commission entirely then the switches 80- and 46 should be open and the switch 32 should be closed in order to stop the consump tion of current.

As a governing and regulating device for the transmitter I- prefer to use the construction shown in Figs. 12 and 13, in which 81 is a collar permanently attached to the motorshaft 54 by set-screw 82. Mounted on the collar and disposed in a general direction parallel with the shaft 54 are the springs 84 84, which carry the balls 83 83, respectively, which balls are connected to the collar 86, which is loosely mounted on the shaft 54, by the springs 85 85, respectively; A lever 87, pivoted at 88, has its lower end tipped with a piece of suitable material, as leather, to bear against the inner face of the revolving collar 86. To the other arm of the lever is connected the expansion-spring 91, which is connected to the cord 92, which passing through the eye 93, screwed into the frame 4, is wound around the stud 94, which. passes through the frame 4, fitting frict-ionally tight therein, the outer end forming a button 95, provided with an indicator-arm 96, which is adapted to revolve about the dial 97, which is divided off suitably into spaces with numerals to indicate the number of words per minute which it is desired to send. The device is first adjusted so that there is considerable tension on the spring 91, so as to cause the tip 89 to bear rather heavily against the collar 86, thus forming a brake for the revolving shaft 54 by reason of the spring 91 operating against the centrifugal force of the balls 83- 83, which tend to draw the two collars to gether when the shaft is revolving. The indicator-arm in this condition is set at 10. Now upon turning the dial in the direction of the arrow the cord 92 will be unwound, releasing the tension on the spring 91 and the friction of the tip or shoe 89, against the collar 86, thus permitting the shaft 54 to revolve at a greater speed. By turning the indicatorarrow 96 in the opposite direction the cord 93 will be wound up on the stud or spindle 94, with the effect of diminishing the speed of the shaft 54. These parts may be so nicely adjusted that upon the turning of the button 95 a certain number of degrees the speed of the shaft will be increased, so as to be'adapt ed to transmit twenty words per minute or thirty words per minute, &c., as indicated in Fig. 13. Of course this does not mean that the machine will transmit exactly the number of words per minute indicated on the dial; but it may be reckoned about this way: A word in telegraphy averages about five letters. Take the length of the average letter. The time required to operate the key and for the subsequent operation of the necessary mechanism, and in this manner the number of revolutions which the shaft 54 must make per minute to transmit a given number of words per minute, or rather to permit the transmission of a certain numberof words per minute, may be approximately ascertained and the mechanism adjusted accordingly. While the indicator does not indicate the minimum speed with which the machine may be operated, this being in control of the operator, as to the frequency with which one stroke follows the other, it does indicate the maximum speedth at is, when set fora given number of words per minute the operator cannot transmit at a greater speed, especially when used in connection with the spacing and locking mechanism hereinbefore described. The indicator does positively indicate the speed with which each signal is transmitted, that being governed according to the speed of the shaft 54. It is also understood that the apparatus here shown and described acts as a self-governor as well as a regulator.

What I claim as new, and desire to secure by Letters Patent, is-

l. The combination with a type-writer, of a telegraphic transmitting attachment therefor consisting of a frame, a series of rotatable disks mounted therein corresponding to the several type-writer keys and adapted to influence the current in the telegraphic circuit, actuating mechanism for the disks, a dog and lever for each disk, suitable operative connections whereby the disks are controlled by the respective corresponding type-writer keys, and an electricallyoperated locking device for preventing the operation of the other disks while any one disk is in operation.

2. The combination with a type-writerhaving keys and keylevers, of a telegraphic transmitting attachment therefor consisting of the frame, the series .of rotatable disks mounted therein corresponding to the several type-writer keys respectively and adapted to cause the make and break in the telegraphic circuit, actuating mechanism for the disks, a

dog on each disk and a lever therefor for controlling the movement of the disk, a rod c011- necting each lever with its corresponding keylever, and an electrically-operated locking device for locking the levers of the attachment said locking device being controlled by the motion of the disks.

3. In telegraphic transmitters, the combination of the frame, the series of rotatable symbol-disks mounted therein representing the various telegraphic signals and adapted to influence the current in the telegraphic circuit, said disks being adapted to revolve at a uniform rate, actuating and controlling mechanism therefor, and a locking device variably controlled by the lengths of the symbols for preventing the operation of any other disk while the symbol on any disk is being transmitted.

4. In telegraphic transmitters, the combination of the frame, the series of symbol-disks mounted therein representing the various telegraphic signals and adapted to influence the current in the telegraphic circuit and being adapted to revolve at a uniform speed, actuatin g and controlling mechanism therefor, and a spacing device controlled by the lengths of the symbols.

5. In telegraphic transmitters, the combination of the frame, the series of symbol-disks mounted therein representing the various telegraphic signals and adapted to influence the current in the telegraphic circuit and to revolve at a uniform speed, actuating and controlling mechanism therefor, and an electricallyoperated spacing device variably controlled by the lengths of the symbols for securing to each symbol exclusive control of the telegraphic circuit while in operation but permitting the operation of the succeeding symbol upon the completion of the transmission of the first symbol.

6. In telegraphic transmltters, the combination of the frame, the series of symbol-disks mounted therein representing and adapted to transmit over the telegraphic circuit the various telegraphic signals and to revolve at a uniform speed, actuating and controlling mechanism therefor, an electric circuit including a source of electrical energy and an electromagnet controlled by the varying lengths of the symbols, and a device for locking the controlling mechanism for the symbol-disks, said locking device being controlled by the electromagnet.

'7. The combination with a typewriter of a telegraphic transmitting attachment therefor consisting of the frame, the driving-shaft and actuating mechanism therefor, the series of normally stationary rotatable symbol-disks mounted on the shaft corresponding to the several type-writer keys and adapted to influence the current accordingly in the telegraphic circuit, a dog on each disk and a lever therefor for controlling the movement of each disk, suitable operative connections between the lever and the type-writer keys whereby the disks are controlled by the respective corresponding type-writer keys, and an electric circuit including asource of electrical energy and an electromagnet and means for locking the controlling mechanism of the symboldisks actuated by the electromagnet, said electric circuit being variably controlled by the varying lengths of the symbols.

S. The combination with a type-writer, of a telegraphic transmitting attachment therefor consisting of the frame, the series of devices mounted therein corresponding to the several type-writer keys respectively and adapted to influence the current in the telegraphic circuit accordingly; actuating and controlling mechanism therefor; the spacing and locking devices variably controlled according to the normally the current in the telegraphic circuit accordingly; driving and controlling mechanism therefor; a locking and spacing device variably controlled according to the lengths of the telegraphic signals; and suitable mechanism for regulating the speed of the driving mechanism.

10. In telegraphic transmitters, the combination of the frame; the driving-shaft mounted therein and driving mechanism therefor; the series of make-and-break disks loosely mounted on the shaft, normally stationary,

and adapted to cause the make and break in the telegraphic circuit as they revolve; a series of keys and operative controlling connections for controlling the movement of the disks; the electrically-operated locking and spacing device variably controlled according to the lengths of the various telegraphic signals; and suitable mechanism for varying the speed of the driving-shaft.

11. In a telegraphic transmitter, the combination of the frame; the drivin g-shaft mounted therein provided with arms extending radially therefrom; actuating mechanism for the shaft; the disk loosely mounted on the shaft adjacent to the arms and connected up with the telegraphic circuit so as to be adapted to'cause the transmission of the telegraphic signal as it revolves; side of the disk having a finger extending through the disk tending naturally to engage the radial arms on the shaft, but being held out of engagement therewith by a releasing and stopping lever; the releasing and stopping lever, the key, and suitable connections whereby the motion of the disk is controlled by'the movement of the key.

12. In telegraphic transmitters, the combination of the frame; the driving-shaft mounted therein having radially-extending arms; actuating mechanism for the shaft; the rotatable disk loosely mounted on the shaft adjacent to the arms, and adapted as it revolves to cause the transmission of the telegraphic signal; the dog on the disk comprising the spring secured to the disk, the finger on the spring extending movably through the disk to engage the arms, and the beveled finger on the spring extending in the direction of the rotation of the disk, the spring being adapted naturally to force the first-mentioned finger into engagement with the shaft; and the re leasing and stopping lever adapted to engage the beveled finger to force the first-mentioned finger out-of engagement with the shaft.

13. In a telegraph-transmitter, the combination with the frame; of the driving-shaft mounted therein and actuating mechanism therefor; the symbol-disk loosely mounted on the shaft; the dog mounted on the disk having a finger adapted to reciprocate at right angles to the disk and tending naturally to engage the shaft, but held normally out of engagement therewith by a releasing and stopping device; the releasing and stopping device; the key; and suitable operative-conneca dog mounted on the g tions whereby the motion of the disk is controlled by the operation of the key.

14. In a telegraphic transmitter, the combination with the frame; of the driving-shaft arranged therein and actuating means for the shaft; the symboldisk loosely mounted on the shaft; the dog comprising the finger movably mounted on the disk and adapted to reciprocate at right angles to the disk into and out of engagement with the shaft, and the spring 'tending to force the finger into engagement Withthe shaft; the releasing and stopping device adapted to force the finger out of engagement with the shaft, the key; and suitable connections whereby the motion of the disk is controlled by the operation of the key.

15. In a telegraph-transmitter, the combination with the frame; of the drivingshaft arranged therein; actuating means for the shaft; the symbol-disk loosely mounted on the shaft; the dog movably mounted on the disk and comprising the finger adapted to move into and out of engagement with the shaft, and the spring to move the finger in one direction; the releasing and stopping device to force the finger in the other direction and adapted to move at substantially right angles to the direction of the reciprocation of the finger; the key; and suitable connections whereby the motion of the disk is controlled by the operation of the key.

16. In a telegraphic transmitter, the combination with the frame; of the driving-shaft arranged therein having radial arms and actuating mechanism; the symbol-disk loosely mounted on the shaft adjacent to the arms; the dog movably mounted on the face of the disk comprising the finger and spring adapted to receiprocate at substantially right angles of engagement with and stopping device to the disk into and out the arms; the releasing leasing and stopping to engage the dog; the spring and the redevice being adapted to force the finger in opposite directions; the key; and suitable connections whereby the motion of the disk is controlled by the operation of the key.

17. In a telegraphic transmitter, the combination with the frame; of the driving-shaft arranged therein having radial arms and actuating mechanism; the symbol-disk loosely mounted on the shaft; the spring, one end of which is secured to the face of the disk, the other end being provided with afingeradapted to engage the radial arms; the device adapted to force the finger out of engagement with the arms the key and suitable connections whereby the motion of the disk is controlled by the operation of the key.

18. In a telegraphictransmitter, the combination with the frame; of the drivingshaft arranged therein; actuating means for the shaft; the symbol-disk loosely mounted on the shaft; the spring, one end of which is secured to the face of the disk, the other end being provided with a finger adapted to move into and out of engagement with'the shaft; said spring being also extended in the direction of rotation of the disk; the nose to engage such extension; such extension and nose being provided with inclined engaging surface whereby as the disk revolves the finger is forced out of engagement with the shaft; the key and connections for controlling the nose.

In testimony whereof I have hereunto subscribed my name in presence of two witnesses.

ALBERT E. MORELOCK. IVitnesses:

JOSEPH GROLL, Z. T. FISHER. 

